AS13783 — RADFORD-UNIV-AS

AS13783 announces 1 IPv4 prefixes covering 65,536 addresses and 0 IPv6 prefixes.

About this network

The third university in this range holding a full /16 and announcing it as a single route.

What it's used for

• A university's network. 65,536 addresses in the single IPv4 prefix 137.45.0.0/16, two observed BGP neighbours, and no IPv6 announced.

Notable

• The block is netname RU-NET, initials and the word for network.
• The AS handle spells out the institution and appends the word for an AS.
• One prefix, one registrant, one netname, and nothing else in the inventory.
• Three addresses were queried for reverse DNS and none returned a name.
• Two upstreams carry the whole network.

Interesting

• A /16 held directly by the institution, announced whole, is the shape of an allocation made when universities were the internet's main occupants. Nothing has forced a change since, so nothing has changed.
• Three institutions in this range hold the same amount of space and route it three different ways: one as twelve halving pieces, one behind a single upstream, and this one as a single route with a spare path. The address count is identical and the operational choices are not.
• No IPv6 at all, from an organisation with more addresses than it can plausibly use, is the honest reason large IPv4 holders were slow to adopt it.

This description is AI-generated, best-effort context — not authoritative, and provided without any guarantee of accuracy.

Announced prefixes

• 137.45.0.0/16

Upstream networks

• AS4922 Shenandoah Cable Television LLC
• AS16942 Citizens Telephone Cooperative

Adjacent networks

• AS4922 Shenandoah Cable Television LLC
• AS16942 Citizens Telephone Cooperative